Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry
<p dir="ltr">We examined the effect of running velocity upon magnitude and range of asymmetry in the main kinetics and kinematics of treadmill running at constant, submaximal velocities. Nine well-trained, un-injured distance runners ran, in a random order, at seven running velocitie...
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| مؤلفون آخرون: | , , , |
| منشور في: |
2019
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| الموضوعات: | |
| الوسوم: |
إضافة وسم
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| _version_ | 1864513526927720448 |
|---|---|
| author | Olivier Girard (409080) |
| author2 | Jean-Benoit Morin (2585959) Joong Ryu (8312100) Paul Read (7244627) Nathan Townsend (12302459) |
| author2_role | author author author author |
| author_facet | Olivier Girard (409080) Jean-Benoit Morin (2585959) Joong Ryu (8312100) Paul Read (7244627) Nathan Townsend (12302459) |
| author_role | author |
| dc.creator.none.fl_str_mv | Olivier Girard (409080) Jean-Benoit Morin (2585959) Joong Ryu (8312100) Paul Read (7244627) Nathan Townsend (12302459) |
| dc.date.none.fl_str_mv | 2019-09-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.3389/fspor.2019.00036 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Running_Velocity_Does_Not_Influence_Lower_Limb_Mechanical_Asymmetry/25256401 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biomedical and clinical sciences Clinical sciences Health sciences Sports science and exercise imbalance symmetry angle scores running velocity kinetics kinematics spring-mass model |
| dc.title.none.fl_str_mv | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">We examined the effect of running velocity upon magnitude and range of asymmetry in the main kinetics and kinematics of treadmill running at constant, submaximal velocities. Nine well-trained, un-injured distance runners ran, in a random order, at seven running velocities (10, 12.5, 15, 17.5, 20, 22.5 and 25 km.h-1) for 60 s (separated by > 90 s of rest) on an instrumented treadmill (ADAL3D-WR, Medical Development, France). Continuous measurement (1000 Hz) of spatio-temporal, horizontal force production and spring-mass characteristics was performed and data over 10 consecutive steps (5 right and 5 leg foot contacts after 50 s of running) were used for subsequent comparisons. Group mean and the range of asymmetry scores were assessed from the ‘symmetry angle’ (SA) formulae where a score of 0%/100% indicates perfect symmetry/asymmetry. Mean SA scores for spatio-temporal variables were lower than 2%: contact time (0.6±0.1%; range: 0.4–0.7%), aerial time (1.7±0.2%; range: 1.3–2.1%) as well as step length and step frequency (0.7±0.2%; range: 0.5–0.9%). Mean loading rate (5.3±1.1%; range: 4.1–6.9%) and spring mass model peak vertical force: 3.2±1.6% (range: 2.9–3.4%); maximal downward vertical displacement: 11.2±6.0% (range: 9.2–14.0%); leg compression: 3.6±1.9% (range: 2.9–5.6%); vertical stiffness: 8.8±1.9% (range: 7.1–11.6%); leg stiffness: 1.6±0.6% (range: 1.2–2.9%) presented larger mean SA values. Mean SA scores ranged 1-4% for duration of braking (1.3±0.3%; range: 0.9–2.0%) and push-off (1.6±0.9%; range: 1.2–2.4%) phases, peak braking (2.4±1.1%; range: 1.6–3.6%) and push-off (1.7±0.9%; range: 1.2–2.2%) forces as well as braking (3.7±2.0%; range: 2.8–5.8%) and push-off (2.1±0.8%; range: 1.3–2.6%) impulses. However, with the exception of braking impulse (P=0.005), there was no influence of running velocity on asymmetry scores for any of the mechanical variables studied (0.118</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Sports and Active Living<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fspor.2019.00036" target="_blank">https://dx.doi.org/10.3389/fspor.2019.00036</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_443d3a7daa8bdf5a6e1b78280ca788db |
| identifier_str_mv | 10.3389/fspor.2019.00036 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25256401 |
| publishDate | 2019 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Running Velocity Does Not Influence Lower Limb Mechanical AsymmetryOlivier Girard (409080)Jean-Benoit Morin (2585959)Joong Ryu (8312100)Paul Read (7244627)Nathan Townsend (12302459)Biomedical and clinical sciencesClinical sciencesHealth sciencesSports science and exerciseimbalancesymmetry angle scoresrunning velocitykineticskinematicsspring-mass model<p dir="ltr">We examined the effect of running velocity upon magnitude and range of asymmetry in the main kinetics and kinematics of treadmill running at constant, submaximal velocities. Nine well-trained, un-injured distance runners ran, in a random order, at seven running velocities (10, 12.5, 15, 17.5, 20, 22.5 and 25 km.h-1) for 60 s (separated by > 90 s of rest) on an instrumented treadmill (ADAL3D-WR, Medical Development, France). Continuous measurement (1000 Hz) of spatio-temporal, horizontal force production and spring-mass characteristics was performed and data over 10 consecutive steps (5 right and 5 leg foot contacts after 50 s of running) were used for subsequent comparisons. Group mean and the range of asymmetry scores were assessed from the ‘symmetry angle’ (SA) formulae where a score of 0%/100% indicates perfect symmetry/asymmetry. Mean SA scores for spatio-temporal variables were lower than 2%: contact time (0.6±0.1%; range: 0.4–0.7%), aerial time (1.7±0.2%; range: 1.3–2.1%) as well as step length and step frequency (0.7±0.2%; range: 0.5–0.9%). Mean loading rate (5.3±1.1%; range: 4.1–6.9%) and spring mass model peak vertical force: 3.2±1.6% (range: 2.9–3.4%); maximal downward vertical displacement: 11.2±6.0% (range: 9.2–14.0%); leg compression: 3.6±1.9% (range: 2.9–5.6%); vertical stiffness: 8.8±1.9% (range: 7.1–11.6%); leg stiffness: 1.6±0.6% (range: 1.2–2.9%) presented larger mean SA values. Mean SA scores ranged 1-4% for duration of braking (1.3±0.3%; range: 0.9–2.0%) and push-off (1.6±0.9%; range: 1.2–2.4%) phases, peak braking (2.4±1.1%; range: 1.6–3.6%) and push-off (1.7±0.9%; range: 1.2–2.2%) forces as well as braking (3.7±2.0%; range: 2.8–5.8%) and push-off (2.1±0.8%; range: 1.3–2.6%) impulses. However, with the exception of braking impulse (P=0.005), there was no influence of running velocity on asymmetry scores for any of the mechanical variables studied (0.118</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Sports and Active Living<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fspor.2019.00036" target="_blank">https://dx.doi.org/10.3389/fspor.2019.00036</a></p>2019-09-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3389/fspor.2019.00036https://figshare.com/articles/journal_contribution/Running_Velocity_Does_Not_Influence_Lower_Limb_Mechanical_Asymmetry/25256401CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/252564012019-09-01T00:00:00Z |
| spellingShingle | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry Olivier Girard (409080) Biomedical and clinical sciences Clinical sciences Health sciences Sports science and exercise imbalance symmetry angle scores running velocity kinetics kinematics spring-mass model |
| status_str | publishedVersion |
| title | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| title_full | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| title_fullStr | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| title_full_unstemmed | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| title_short | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| title_sort | Running Velocity Does Not Influence Lower Limb Mechanical Asymmetry |
| topic | Biomedical and clinical sciences Clinical sciences Health sciences Sports science and exercise imbalance symmetry angle scores running velocity kinetics kinematics spring-mass model |